"It felt like something hitting you in the chest. It was a strange experience. I was walking out of my shop at the time and after the noise - an extremely loud bang - came this rush of air, hitting me in the chest. I thought it must be a plane, I'd heard them in the past but not like that.

"We obviously have no say where the military fly for their exercises but perhaps they should be careful where they put the pedal down.

"Perhaps the pilot didn't really know where he was on this occasion but they should try to avoid built up areas."

Other booms listed include two over Llangeitho, Ceredigion - in April and December 2012.

Military Low Flying Area 7 (LFA7) covers a large area of Wales and is used by the RAF and other air forces, particularly the USAF.

The MoD has received 15 claims for compensation as a result of sonic booms in the last five years and had paid out about £1,800.

The RAF said supersonic training was prohibited overland in the UK for both RAF and USAF fast jet crews.

For most incidents where supersonic booms were heard, they were either sound travelling from aircraft training over the sea, or RAF Quick Reaction Alert aircraft responding to intercept unidentified aircraft.

"It is very rare for accidental supersonic flight during operational training overland and we apologise for any inconvenience caused when this happens," said a spokesman.